The machine of choice for this task under $299 will come with Intel
D510 dual-core Atom, NM10 southbridge. Graphics and memory controller
are inside Atom D510 and graphics will end up branded as Intel GMA
3150.

The nettop should come with 160GB hard drive and 1GB memory. Intel
suggest that it can come with a DVD drive and maintain this price while
the OS of choice is either Windows 7 or Linux.

The nettops will still come with a small and nice chassis that might make
them even more attractive. Beware as Intel still suggests that
"Customers have sole discretion in setting system MSRP (Minimum
suggested retail price)" which gives them freedom to charge more for
the same stuff that can be sold for $299.